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Colloquium: March 19, 2014

Lukas Novotny*
Cooling and Amplification of a Vacuum-Trapped Nanoparticle
Day Time Place
March 19, 2014 Wednesday 15:40 EE01

Host: Giovanni Volpe

ABSTRACT —  We optically trap a single nanoparticle in high vacuum and cool its three spatial degrees of freedom by means of active parametric feedback. The small size and mass of the nanoparticle yield high resonance frequencies and high Q-factors along with low recoil heating, which are essential conditions for ground state cooling and for low decoherence. The vacuum-trapped nanoparticle forms an ideal model system for studying non-equilibrium processes, nonlinear interactions, and ultrasmall forces.

*ETH Zurich, Zurich, Switzerland

The Physics Colloquia are designed to address a non-specialist, broad audience and introduce topics of contemporary research through lectures by leading experts. We warmly invite all members of the student body, including undergraduates enrolled in any programme.

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